linux-cve-announce - CVE-2024-43866: net/mlx5: Always drain health in shutdown callback

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Message-ID: <2024082157-CVE-2024-43866-66ed@gregkh>
Date: Wed, 21 Aug 2024 07:50:59 +0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-43866: net/mlx5: Always drain health in shutdown callback

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5: Always drain health in shutdown callback

There is no point in recovery during device shutdown. if health
work started need to wait for it to avoid races and NULL pointer
access.

Hence, drain health WQ on shutdown callback.

The Linux kernel CVE team has assigned CVE-2024-43866 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 4.14 with commit d2aa060d40fa and fixed in 6.6.45 with commit 6b6c2ebd83f2
	Issue introduced in 4.14 with commit d2aa060d40fa and fixed in 6.10.4 with commit 6048dec75455
	Issue introduced in 4.14 with commit d2aa060d40fa and fixed in 6.11-rc2 with commit 1b75da22ed1e
	Issue introduced in 4.13.16 with commit 63d10e93df94

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2024-43866
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/net/ethernet/mellanox/mlx5/core/main.c
	drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/6b6c2ebd83f2bf97e8f221479372aaca97a4a9b2
	https://git.kernel.org/stable/c/6048dec754554a1303d632be6042d3feb3295285
	https://git.kernel.org/stable/c/1b75da22ed1e6171e261bc9265370162553d5393